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How does the size and shape of metallic silver nanoparticles affect the efficiency of silver halide photochemical reactions in photosensitive materials used in photography?
asked
Feb 24
in
PhotoChemistry
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votes
1
answer
34
views
What is the optimal reaction conditions and catalyst for the synthesis of high molecular weight polystyrene with a desired molecular weight range of 100,000-500,000 g/mol from styrene monomer?
asked
Feb 21
in
Chemical synthesis
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votes
1
answer
29
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What is the optimal ratio of diisocyanate and polyol required for the synthesis of polyurethane with desired mechanical and thermal properties?
asked
Feb 21
in
Chemical synthesis
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votes
1
answer
32
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How does the metabolic profile of cancer cells differ from that of healthy cells, and how can this information be used to develop targeted cancer treatments?
asked
Feb 20
in
BioChemistry
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votes
1
answer
31
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What is the critical temperature of a substance and how does it affect its phase behavior? Provide an example with the phase diagram of CO2 to illustrate your answer.
asked
Feb 19
in
Physical Chemistry
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1
answer
34
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How does the composition and structure of glasses affect their refractive index and light transmission properties, and how can these properties be optimized for specific optical applications such as lenses, prisms, and optical fibers?
asked
Feb 18
in
Materials Chemistry
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votes
1
answer
35
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What is the balanced chemical equation for the combustion of methane gas (CH4) and what is the oxidation state of carbon in CH4 before and after the combustion reaction?
asked
Feb 17
in
Chemical reactions
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votes
1
answer
31
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How does the addition of a specific ligand affect the folding kinetics of a certain protein? Use molecular dynamics simulations of protein folding to investigate the effect of various concentrations of the ligand on the folding process of the protein.
asked
Feb 17
in
Computational Chemistry
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1
answer
42
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How can we modify the structure of a drug molecule to increase its binding affinity and specificity towards a particular enzyme or receptor target, while also minimizing potential side effects on other biological systems?
asked
Feb 13
in
Medicinal Chemistry
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1
answer
35
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How can we design a drug that specifically targets and kills breast cancer cells without damaging healthy cells?
asked
Feb 12
in
Medicinal Chemistry
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1
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66
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What is the effect of changing the concentration of reactants on the equilibrium constant for a chemical reaction and how can it be measured experimentally?
asked
Feb 3
in
Chemical kinetics
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1
answer
39
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Ammonia and hydrochloric acid react to form ammonium chloride according to the equation: NH3(g) + HCl(g) ⇌ NH4Cl(s). If a student were to add 0.1 moles of NH4Cl to the mixture at equilibrium and the volume of the container is constant, what will be the new concentration of NH3(g) and HCl(g) in the mixture?
asked
Jan 22
in
Chemical equilibrium
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1
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91
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A brass alloy electrode with an area of 5 cm² is immersed in a 0.5 M NaCl solution at 25°C. Given that the standard potential of the electrode is -0.35 V versus a standard hydrogen electrode, calculate the corrosion current density of the electrode in the given environment using Tafel extrapolation.
asked
Jan 22
in
ElectroChemistry
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1
answer
63
views
According to the working memory model, what is the relationship between attention and working memory?
asked
Jan 20
in
Psychology
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1
answer
67
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Why is the use of reclaimed language important in promoting self-esteem?
asked
Jan 20
in
Psychology
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votes
1
answer
108
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According to the ecological systems theory, what are the five systems that influence child development?
asked
Jan 20
in
Psychology
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1
answer
50
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How are p-values used in hypothesis testing?
asked
Jan 16
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Psychology
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1
answer
60
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According to falsifiability, what must scientific theories be?
asked
Jan 15
in
Psychology
0
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1
answer
74
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Which common element is the most found in living organisms?
asked
Jan 8
in
Science
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1
answer
110
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When do homologous chromosomes form pairs?
asked
Jan 8
in
Science
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